Welcome to the fistula club........I had one for years after radiation, then after my surgery last year I developed one on the left side of my face, they fixed that, now i have one on the left side..........which by the way, my wife has to poke open twice daily with a q-tip........and that`s getting sore..........unforntunately, fisulas do result from radiation, that`s something I didn`t learn til after the fact....surgery corrected the one on the left side of my face........I`m having surgery Mon, and they better fix this one too.........just know you`re not alone with fistulas